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Luitz David J.

Postdoctoral researcher, CNRS

Research interests

My research is focussed on computational approaches to quantum many body systems with strong interactions. In particular, my expertise lies in the field of quantum Monte Carlo methods, such as CT-INT and SSE. Using these methods, I recently studied statistical properties of wave functions and reduced density matrices of many body groundstates and the links to entanglement and spontaneous symmetry breaking. In a current effort, I used large scale exact diagonalization to obtain wavefunctions in the middle of the spectrum of the random field quantum Heisenberg chain and could map out the many body mobility edge as a function of energy and disorder strength.


2015+ Gordon and Betty Moore Postdoctoral Fellow, University of Illinois at Urbana Champaign

2013-2015 Postdoctoral researcher, CNRS with Fabien Alet and Nicolas Laflorencie, IRSAMC (LPT), Toulouse, France

2008-2012 PhD in theoretical physics with Fakher Assaad, University of Würzburg, Germany

2004-2008 studies of physics, University of Würzburg, Germany

2003-2004 studies of physics, University of Augsburg, Germany

Selected publications

Manipulating the magnetic state of a carbon nanotube Josephson junction using the superconducting phase (2015) R. Delagrange, DJ Luitz, R. Weil, A. Kasumov, V. Meden, H. Bouchiat, and R. Deblock, Phys. Rev. B 91, 241401(R) editor’s suggestion

Critical Properties of the Superfluid—Bose-Glass Transition in Two Dimensions (2015) JP Álvarez Zúñiga, DJ Luitz, Gabriel Lemarié, and Nicolas Laflorencie, Phys. Rev. Lett. 114, 155301

Many-body localization edge in the random-field Heisenberg chain (2015) DJ Luitz, N Laflorencie, F Alet, Phys. Rev. B 91, 081103(R) editor’s suggestion

Improving entanglement and thermodynamic Rényi entropy measurements in quantum Monte Carlo (2014) DJ Luitz, X Plat, N Laflorencie, F Alet, Phys. Rev. B 90, 125105

Participation spectroscopy and entanglement Hamiltonian of quantum spin models (2014) DJ Luitz, N Laflorencie and F Alet, J. Stat. Mech. (2014) P08007

Shannon-Rényi entropies and participation spectra across three-dimensional O(3) criticality (2014) DJ Luitz, F Alet, N Laflorencie, Physical Review B 89 (16), 165106

Universal Behavior beyond Multifractality in Quantum Many-Body Systems (2014) DJ Luitz, F Alet, N Laflorencie, Physical Review Letters 112 (5), 057203

Understanding the Josephson current through a Kondo-correlated quantum dot (2012) DJ Luitz, FF Assaad, T Novotný, C Karrasch, V Meden, Physical review letters 108 (22), 227001

All publications on arxiv :